Home / 1,207,903.40-1,811,848.70-309,343.40

Finding the Fourth Proportional to 1,207,903.40, 1,811,848.70 and 309,343.40

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Solution

The fourth proportional to 1,207,903.40, 1,811,848.70 and 309,343.40 is: 464,013.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,903.40 : 1,811,848.70 = 309,343.40 : x
  2. Step 2: Convert to fraction form
    1,207,903.40/1,811,848.70 = 309,343.40/x
  3. Step 3: Cross multiply
    1,207,903.40x = 1,811,848.70 × 309,343.40
  4. Step 4: Simplify right side
    1,207,903.40x = 560,483,437,143.58
  5. Step 5: Solve for x
    x = 560,483,437,143.58/1,207,903.40
  6. Step 6: Final answer
    x = 464,013.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.